Piano caster cup



FIG. 1 is a top view of the piano caster cup;

FIG. 2 is a bottom view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a top perspective view thereof.

CLAIM The ornamental design for piano caster cup, as shown anddescribed.